> I do not know why a hive would die in summer unless it went queenless and
> was not requeened.  The only hives I have "die" in summer are ones where I
> am using the resources to make nucs for raising queens.  I "kill" those
> myself by robbing them into non-existence.
>

One problem with the survey are the cut-offs for winter start and winter
end. I had one die because of varroa (my essential oil experiment) but not
until just after the winter cut-off. So even though it died because of
winter, it became a summer kill.

So most of the northern part of the country can have winter kills become
summer kills all because of the early cut-off.

Bill Truesdell
Bath, Maine

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